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2 years ago

Describe a real word world problem you could solve using a proportion

Mathematics

1 answer:

katen-ka-za [31]2 years ago

5 0

Answer:

if dad used 6 gallons every week then what will he use for 7 weeks?

Step-by-step explanation:

6 muliplied by 7 = answer :)

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Find out for what value of the variable:

Burka [1]

Answer:

$a=-1,\ a=-5$

$x=-2+i,\ -2-i$

Step-by-step explanation:

<u>Equations</u>

We have two cases where some variable is required to be found such that some condition is met. The first case is about finding the value of a that complies:

$a^2+7a+6=a+1$

Rearranging

$a^2+6a+5=0$

Factoring:

$(a+1)(a+5)=0$

There are two solutions:

$a=-1,\ a=-5$

The second case requires us to find the value of x such that

$3x^2-x+1 =2x^2+5x-4$

Rearranging

$x^2+4x+5=0$

This second-degree equation has no real roots. We'll offer the imaginary (complex) solutions:

$x=-2+i,\ -2-i$

5 0

3 years ago

A person whose eye level is 20 feet above the ground is looking at a building. The angle of elevation to the top of the building

Inessa [10]

Distance of the person from the building (x)

tan 24 = 20/x => x = 20/tan 24 = 44.92 ft

The height of the building above the height of the person and the distance of the person from the building forms two legs of right angled triangle.

Therefore, if h is the height of the building, then;
tan 31 = (h-20)/44.92
h-20 = 44.92 tan 31
h = (44.92 tan 31) + 20 = 26.99 + 20 = 46.99 ft

8 0

2 years ago

I. am. tired. of. posting. questions. over. and. over. again. I so serious this is a grade and today is my last day of school an

aleksklad [387]

Answer:hi

Step-by-step explanation:plz like and brainliest i am noob I really need this plz

3 0

2 years ago

Read 2 more answers

A person walks 2 3 of a mile in 2 9 of a hour. Which complex fraction when simplified will compute the unit rate of miles per ho

GaryK [48]

2/3 / 2/9
= 2/3 * 9/2
=18/6
=3

rate = 3 miles per hour